1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
|
function out(k,v) {
print(k "" (v == "" ? "" : " "v))
}
function pop() {
return len <= 0 ? "_" : opt[len--]
}
{
if (done) {
out("_" , $0)
next
}
if (match($0, "^-[A-Za-z]+")) {
$0 = "- " substr($0, 2, RLENGTH - 1) " " substr($0, RLENGTH + 1)
} else if (match($0, "^--[A-Za-z0-9_-]+")) {
$0 = "-- " substr($0, 3, RLENGTH - 2) " " substr($0, RLENGTH + 2)
}
if ($1 == "--" && $2 == "") {
done = 1
} else if ($2 == "" || $1 !~ /^-|^--/ ) {
out(pop(), $0)
} else {
while (len) {
out(pop())
}
if ($3 != "") {
if (match($0, $2)) {
$3 = substr($0, RSTART + RLENGTH + 1)
}
}
if ($1 == "--") {
if ($3 == "") {
opt[++len] = $2
} else {
out($2, $3)
}
}
if ($1 == "-") {
if ($2 == "") {
print($1)
next
} else {
n = split($2, keys, "")
}
if ($3 == "") {
opt[++len] = keys[n]
} else {
out(keys[n], $3)
}
for (i = 1; i < n; i++) {
out(keys[i])
}
}
}
}
END {
while (len) {
out(pop())
}
}
|
